c# .net 如何为MENU菜单加图片 （转）

方法1：

需要使用到API

首先: using System.Runtime.InteropServices;

然后:

[DllImport("user32",EntryPoint="SetMenuItemBitmaps")]

private static extern int SetMenuItemBitmaps (IntPtr hMenu, int nPosition, int wFlags, IntPtr hBitmapUnchecked, IntPtr hBitmapChecked);

最后在Form_Load时:

Bitmap bitmap = new Bitmap("c:\\icon.ico");

int MF_BYPOSITION = 0x0400;

SetMenuItemBitmaps(menuFile.Handle,0,MF_BYPOSITION,bitmap.GetHbitmap(System.Drawing.Color.White),bitmap.GetHbitmap(System.Drawing.Color.White));

注:此图标我为白色底，如果为红色底的则使用 System.Drawing.Color.Red;

以此类推，就OK了。

方法2：

用.net也可以做出来的，方法如下：

/// <summary>

/// 绘制菜单项 XP 风格

/// </summary>

/// <param name="e">绘制菜单事件</param>

/// <param name="unSelectBackColor">未选择时背景色</param>

/// <param name="selectBackColor">选择时背景色</param>

/// <param name="selectBackColorEnd">选择时背景过渡色,如果没有请用透明色</param>

/// <param name="unSelectForeColor">未选择时前景色</param>

/// <param name="selectForeColor">选择时前景色</param>

/// <param name="menuRect">菜单矩框大小</param>

/// <param name="imgMenu">整个菜单左边的图片</param>

/// <param name="iconMenu">菜单项图标</param>

/// <param name="iconTranColor">菜单项图标之透明色</param>

/// <param name="sMenuItemWord">菜单项文字</param>

private void DrawMenuItem(DrawItemEventArgs e, Color unSelectBackColor,Color selectBackColor,Color selectBackColorEnd,Color unSelectForeColor,Color selectForeColor,Image imgMenu,Image iconMenu,Color iconTranColor,String sMenuItemWord)

{

Bitmap iconBitMapMenu = new Bitmap(iconMenu);

iconBitMapMenu.MakeTransparent(iconTranColor);

Rectangle rectMenu = e.Bounds;

Brush selectBackBrush = new System.Drawing.SolidBrush(selectBackColor);

Brush unSelectBackBrush = new System.Drawing.SolidBrush(unSelectBackColor);

Brush selectForeBrush = new System.Drawing.SolidBrush(selectForeColor);

Brush unSelectForeBrush = new System.Drawing.SolidBrush(unSelectForeColor);

if(e.State == DrawItemState.NoAccelerator)

{

e.Graphics.FillRectangle(unSelectBackBrush,rectMenu);

e.Graphics.DrawString(sMenuItemWord,this.Font,unSelectForeBrush,rectMenu.X+40,rectMenu.Y+4);

e.Graphics.DrawImageUnscaled(iconBitMapMenu,rectMenu.X+22,rectMenu.Y+2,iconMenu.Width,iconMenu.Height);

}

else

{

if(selectBackColorEnd != Color.Transparent)

selectBackBrush = new System.Drawing.Drawing2D.LinearGradientBrush(rectMenu,selectBackColor,selectBackColorEnd,0F);

e.Graphics.FillRectangle(selectBackBrush,rectMenu);

e.Graphics.DrawString(sMenuItemWord,this.Font,selectForeBrush,rectMenu.X+40,rectMenu.Y+4);

e.Graphics.FillRectangle(System.Drawing.Brushes.WhiteSmoke,rectMenu.X+20,rectMenu.Y,20,20);//图标背景

e.Graphics.DrawImageUnscaled(iconBitMapMenu,rectMenu.X+2+20,rectMenu.Y+2,imgMenu.Width,imgMenu.Height);//图标

}

e.Graphics.DrawImageUnscaled(imgMenu,0,0);

}

//不过，您要在调用前设Menu的OwnerDraw=true才行哦。以下是调用方法:

private void menuExit_DrawItem(object sender, DrawItemEventArgs e)

{

DrawMenuItem(e,Color.WhiteSmoke,Color.DeepSkyBlue,Color.White,Color.Black,Color.Black,picMenu.Image,imageList.Images[2],Color.White,"退出");

}

private void menuExit_MeasureItem(object sender, MeasureItemEventArgs e)

{

e.ItemWidth = 150;

e.ItemHeight = 20;

}